Chapter 13 (2)
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What are the three parts of the brain stem?
Describe the midbrain.
Contains nuclei that coordinate visual and auditory reflexes.
Contains centers that help to maintain consciousness.
Describe the pons.
Connects cerebellum to brain stem.
Has tracts and relay centers.
Contains nuclei that function in somatic and visceral motor control
Describe the medulla oblongata.
Relays sensory information to other areas of brain stem and thalamus.
Contains major centers that regulate autonomic function.
Describe the structure of a ventrivle of the brain.
Cavity filled with cerebrospinal fluid.
Lined with ependymal cells.
Connected by narrow canals.
Describe the structure and location of the Lateral centricles.
Contained within each cerebral hemisphere.
Each connected to third ventricle by interventricular foramen.
Separated medially by septum pellucidum.
“Roof” partially formed by thick white matter tract connecting hemispheres (corpus callosum).
Describe the structure and location of the third ventricle.
Contained within diencephalon.
Connected to fourth ventricle by aqueduct of the midbrain (cerebral aqueduct).
Describe the structure and location of the fourth ventricle.
Between pons of brain stem anteriorly and cerebellum posteriorly.
Continuous with central canal of spinal cordcerebral aqueduct connects it to third ventricle.
Chapter 13 (2)
Lecture test number one.